| 1. Round | 02/04/2023 | Kashiwa Reysol [U18] | - | Aomori Yamada High School [U18] | 0:5 | ||||
| 3. Round | 16/04/2023 | Kashiwa Reysol [U18] | - | Ichiritsu Funabashi High School [U18] | 2:1 | ||||
| 4. Round | 23/04/2023 | Asahikawa Business High School [U18] | - | Kashiwa Reysol [U18] | 3:3 | ||||
| 6. Round | 14/05/2023 | Maebashi Ikuei High School [U18] | - | Kashiwa Reysol [U18] | 2:1 | ||||
| 7. Round | 20/05/2023 | FC Tokyo [U18] | - | Kashiwa Reysol [U18] | 1:1 | ||||
| 12. Round | 03/09/2023 | Ichiritsu Funabashi High School [U18] | - | Kashiwa Reysol [U18] | 0:3 | ||||
| 13. Round | 09/09/2023 | Kashiwa Reysol [U18] | - | Shohei High School [U18] | 1:1 | ||||
| 15. Round | 24/09/2023 | Kashiwa Reysol [U18] | - | Maebashi Ikuei High School [U18] | 5:0 | ||||
| 16. Round | 01/10/2023 | Yokohama F. Marinos [U18] | - | Kashiwa Reysol [U18] | 3:1 | ||||
| 18. Round | 14/10/2023 | Omiya Ardija [U18] | - | Kashiwa Reysol [U18] | 0:3 | ||||
| 20. Round | 19/11/2023 | Kashiwa Reysol [U18] | - | Shoshi High School [U18] | 3:0 | ||||
| 21. Round | 25/11/2023 | Kawasaki Frontale [U18] | - | Kashiwa Reysol [U18] | 1:0 |
Japan